When opening a video on Apple TV, it opens and then immediately closes again
This is a new problem, as of today. This morning I tried to play a video from the TV app on my MacBook, and it opened a window, then immediately closed it again. It worked before, but not now.
This happens when I have an external monitor connected. It even happens when I try to play the video on the Macbook's screen when the external monitor is connected.
I have an M1 Pro Macbook Pro. My second screen is a 43" 4k Insignia NS-43DR620NA18 TV, HDR and HDCP 2.2 compliant. I am connected via the HDMI port.
I tried rebooting the computer. I have tried downloading the video. Now it just closes even faster. I tried other videos, and videos that worked yesterday. Nope. I have just now updated to Ventura 13.5.1. Still nothing. I tried changing the resolution in the Displays setting. I tried enabling the High Dynamic Range switch in the Displays setting. Nada. I tried updating the firmware on the TV. I tried various combinations of rebooting with and without the HDMI cable connected. No joy.
What is going on?
MacBook Pro 15″, macOS 11.6